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NV0G9 ST9500431SS Dell 500GB 7.2K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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Dell ENT 8WP8W HUC106060CSS600 600GB 10K RPM 6Gb/s SAS 2.5"SERVER HDD Hard Drive
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NP659 MBB2147RC Dell 147GB 10K RPM 3Gb/s SFF 2.5" SAS SERVER HDD HARD DRIVE
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  • $50.00 
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Dell 2RR9T 02RR9T ST900MM0006 900GB 10K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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96G91 WD6001BKHG Dell ENTERPRISE 600GB 10KRPM 6Gb/s 2.5"SASSERVER HDD Hard Drive
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MTV7G AL13SEB300 Dell 300GB 10K 6Gb/s 2.5"SFF SAS ENTERPRISE Hard Drive W/R Tray
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  • $46.88 
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X162K ST9146852SS Dell 146GB 15KRPM 6Gb/s 2.5"SAS SERVER HDD Hard Drive W/R Tray
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2G4HM WD2003FYYS-18W0B0 Dell 2TB 7200RPM 3Gbps 3.5" SATA Hard Drive
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DELL
2G4HM WD2003FYYS-18W0B0 Dell 2TB 7200RPM 3Gbps 3.5" SATA Hard Drive
  • Model #: 2G4HM-dell-WD2003FYYS-18W0B0-new-zerohrs
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  • $79.00 
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Dell EQL V8 F4VMK 0F4VMK 900GB 10K 12G 2.5" SAS Hard Drive ST900MM0168
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61XPF ST9146853SS Dell 146GB 15K RPM 6Gbps 2.5" SAS SERVER Hard Drive W/R Tray
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  • $34.88 
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Hitachi GST Deskstar 7K160 HDS721616PLA380 (0A32728) 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Hitachi GST Deskstar 7K160 HDS721616PLA380 (0A32728) 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HDS721616PLA380
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  • $55.00 
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91K8T ST33000650SS  Dell 3TB 7200RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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0XX518 Dell ST3146356SS CHEETAH 15K.6 146GB 15K 3Gb/s 3.5"SAS Hard Drive-0 H0RS
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  • $57.88 
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Maxtor DiamondMax Plus 9 6Y080L0 80GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Maxtor DiamondMax Plus 9 6Y080L0 80GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y080L0
GY581 ST373455SS Dell 73GB 15K RPM 3Gbps 3.5" SAS HDD Hard Drive - (ZERO HOURS)
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  • $55.88 
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DELL WD3001BKHG-DELL WD3001BKHG-DELL 300GB 10K SFF SAS HARD DRIVE
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990FD AL13SXB600N DELL 600GB 15K RPM 6Gbps 2.5" SAS HDD Hard Drive - (0 HOURS)
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FX0XN ST1000NM0011 Dell EQL 1TB 7.2K RPM 3Gb/s 3.5" SATA SERVER HDD Hard Drive
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HP 652757-B21 2TB 7200 RPM SAS 6Gb/s 3.5" LFF SC Midline Hard Drive Bare Drive
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HP 652757-B21 2TB 7200 RPM SAS 6Gb/s 3.5" LFF SC Midline Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Hard Drives
  • Parts: 1 Year
  • Labor: 1 Year
  • Model #: 652757-B21
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  • $274.45 
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Dell R734K 0R734K 500GB 7.2K 6G 16MB 2.5in SAS Hard Drive ST9500430SS
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V5300 0V5300 ST600MP0005 DELL ENTERPRISE 600GB 15K 6G 2.5" SAS Hard Drive HDD V5
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Desktop internal hard drives store operating systems, system files, software and individual files. They can offer anywhere from 500GB of storage up to 8TB or more and come with a variety of interfaces. Although most internal drives are 3.5in., some devices use a smaller 2.5in. form factor. Smaller and larger physical sizes are rare but do exist. Also, consider the speed of the drive. Internal hard drives for desktop computers tend to run at 7,200 revolutions per minute (RPM) but faster read-write speeds minimize waiting time. Hard drives with speeds of up to 15,000 RPM are available. Finally, memory cache is the amount of memory that can be active at any given time. A larger cache is important if you work with multiple large files at once.

Improve Your Computer's Performance with a New Hard Drive

You might not be concerned about storage space when you buy a new PC, but the hard drive will fill will with files and software. A new desktop internal hard drive can replace an existing drive that has reached maximum capacity. Alternatively, if your motherboard has a spare bay, you can add a second or additional device to expand storage. An internal HDD for PCs is easy to install, has greater capacity and speed than an external device and comes with multiple storage options.

Store All Your Data with Large Capacity Drives

Every piece of software you install, every song you save, every video you download takes up storage space, which can slow down a computer. A 720p movie takes up approximately 8GB, while a 4k video can consume as much as 100GB of a desktop internal hard drive. Even the Windows 10 operating system requires 15GB. A 500GB hard drive can be useful for storing files while you're on the move before transferring them to a larger drive if you don't have a personal cloud device or portable hard drive. For everyday and ongoing storage, this size drive will quickly fill up. Desktop internal hard drives offer the storage of up to 16TB in some cases, providing plenty of space for software and files.

Ensure Compatibility by Choosing the Right Interface

The most commonly used standards for connecting a desktop internal hard drive to a motherboard are SATA and SAS. Determine the motherboard's interface and ensure that you match this when buying a new drive to ensure compatibility and to avoid having to use an adapter. Check the label off the drive you are replacing or look at the manufacturer guidelines for your motherboard.

Access Data Quicker with a Fast SATA Internal Hard Drive

The speed the disk platters spin determines how quickly information can be retrieved from the drive. It is common for external hard drives to have a speed of 5,000 RPM because this draws less power and makes minimal noise. Other hard drive designs have a speed of up to 15,000 RPM, depending on the model.

Bestselling Desktop Internal Hard Drives Reviews:

the Muttonmastwer
5/11/2026 11:18:09 AM
Hasn't broken yet

“ I have it attached via USB on my desktop and it has all my work on it, safe from Windoze crash damage or erasure on OS re-installs. ”

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX